Hi,
sad news, the completion suggester v2 was reverted from elastic 2.x
branch[1] and is now delayed to elasticsearch v5.
Unfortunately I was planning to use important features in this version
to add realtime support.
I'll start to think about it and see if we can workaround and still
improve the current implementation.
I'm really sorry about that, I should have monitored the elasticsearch
repo more closely...
[1]
https://github.com/elastic/elasticsearch/pull/17120